SOLUTION: The​ half-life of a radioactive substance is 50 years. If you start with some amount of this​ substance, what fraction will remain in 100 ​years? What fraction wi
Question 1129962: The half-life of a radioactive substance is 50 years. If you start with some amount of this substance, what fraction will remain in 100 years? What fraction will remain in 300 years?
The fraction that will remain in in 100 years is the following. ______
The fraction that will remain in in 300 years is the following. ______ Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! The half-life of a radioactive substance is 50 years.
If you start with some amount of this substance, what fraction will remain in 100 years? What fraction will remain in 300 years?
:
The radio active decay formula: A = Ao*2^(-t/h), where
A = remaining amt after t time
Ao = initial amt
t = time of decay
h = half-life of substance
:
let initial amt = 1
t = 100 yrs
A = 1*2^(-100/50)
A = .25
The fraction that will remain in in 100 years is the following: .25 or
:
t = 300
A = 1*2^(-300/50)
A = .015625
The fraction that will remain in in 300 years is the following: .015625 or
